Method and apparatus for producing an optical disk having a read-only area and a rewritable area
US5422871A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1993 |
| Grant date | Jun 6, 1995 |
| Priority date | — |
| Expiry date | Sep 16, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/1259
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method produces and an apparatus includes an optical disk, with a center, having a rewritable area and a read-only area located further out from the center than the rewritable area. The method includes the steps of and the apparatus includes units for registering first management information concerning a dummy file in a file address management area located further in toward the center than the rewritable area, the dummy file having a capacity corresponding to that of the rewritable area; registering second management information concerning files to be written into the read-only area in the file address management area so that the second management information is subsequent to the first management information and registering the files into the read-only area; and erasing the first management information from the file address management area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.